Southwire® Conversion Calc vs Fault Current Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Southwire® Conversion Calc
This utility app facilitates conversions between copper and aluminum electrical wiring. It allows users to calculate pricing, unit of measure, conversion factors, and weight based on product length. The app comes preloaded with numerous cable types for easy calculation.
- Copper to aluminum conversion
- Aluminum to copper conversion
- Pricing unit of measure calculation
- Conversion factor calculation
- Weight per product length calculation
- Preloaded cable data
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Southwire's Conversion Calculator helps to convert copper to aluminum or aluminum to copper, pricing unit of measure, conversion factor and weight per product length. Preloaded with many cables for calculation.
Fault Current Calculator
This tool helps contractors, engineers, and electricians quickly calculate available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for various circuits and can generate labels for service equipment.
- Calculate available fault current
- Size fuses and conductors
- Generate service equipment labels
- Single and three-phase system support
- NEC® 110.24 compliance
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Eaton's Bussmann Series FC2 Available Fault Current Calculator application is an innovative tool developed for contractors, engineers, electricians, and electrical inspectors. This tool can be used on the Bussmann website or out in the field on a mobile device for those needing a quick and simple way to determine available fault current. With this simple tool, users can: - Calculate available fault current on single and three-phase systems - Create and send a label via email for marking the available fault current on service equipment (NEC® 110.24) - Size fuses and conductors for service, feeder, and branch circuits. This application, calculations, and other information are intended to clearly present technical information that will determine the available fault current at specific points in an electrical system. Bussmann reserves the right, without notice, to change this application and/or discontinue/ limit its distribution and/or availability. Bussmann also reserves the right to change or update, without notice, any technical information contained in this application. The data and information presented in this application are believed to be accurate. However, any and all liability for the content, or any omissions from this application, including any inaccuracies, errors, or misstatements in such data, calculations or information, is expressly disclaimed. The application, calculations and other information are provided without warranty of any kind, either expressed or implied, but not limited to, the implied warranties of merchantability, or fitness for a particular purpose. Bussmann disclaims any liability for the use of this application, calculations or other information. The complete End-User License Agreement can be found at: https://faultcurrentcalculatorpro.bussmann.com/home/eula
Screenshots
Verdict
The clearest difference is rating: Southwire® Conversion Calc at 4.2 against Fault Current Calculator's 3.1. Southwire® Conversion Calc also leads on in-app purchases (none vs 2). Fault Current Calculator's advantage is ratings volume (23 vs 5) and device support (3 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Fault Current Calculator sells 2 in-app purchases, starting at $4.99 per month. Southwire® Conversion Calc asks for nothing beyond the download.
Southwire® Conversion Calc holds the better App Store score, 4.2 against 3.1. Both are backed by a comparable volume of ratings — 5 and 23 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 2, 2026 and October 20, 2026 respectively.
| Parameter | Southwire® Conversion Calc | Fault Current Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | 3.1 (23 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 5 | 23 — better |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 25 MB |
| Age rating | 4+ | 17+ |
| Developer | Southwire Company | Cooper Bussmann, LLC |
Customer experience
Southwire® Conversion Calc
Fault Current Calculator
In-app purchases
Southwire® Conversion Calc
No in-app purchases
Fault Current Calculator
- Pro Monthly Subscription7 Days trial$4.991 Month
- Pro Annual Subscription7 Days trial$39.991 Year
Questions
Is Southwire® Conversion Calc free?
Is Fault Current Calculator free?
Which has better reviews, Southwire® Conversion Calc or Fault Current Calculator?
Do Southwire® Conversion Calc or Fault Current Calculator have ads?
Which is updated more often, Southwire® Conversion Calc or Fault Current Calculator?
Other comparisons
